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    Differentiation of gluteus medius and minimus activity in weight bearing and non-weight bearing exercises by M-mode ultrasound imaging

    Access Status
    Fulltext not available
    Authors
    Dieterich, A.
    Petzke, F.
    Pickard, Christine
    Davey, Paul
    Falla, D.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Dieterich, A. and Petzke, F. and Pickard, C. and Davey, P. and Falla, D. 2015. Differentiation of gluteus medius and minimus activity in weight bearing and non-weight bearing exercises by M-mode ultrasound imaging. Manual Therapy. 20 (5): pp. 715-722.
    Source Title
    Manual Therapy
    DOI
    10.1016/j.math.2015.01.006
    ISSN
    1356-689X
    School
    School of Physiotherapy and Exercise Science
    URI
    http://hdl.handle.net/20.500.11937/9554
    Collection
    • Curtin Research Publications
    Abstract

    Background: Knowledge on task-specific activity of the deep hip abductor muscles is limited and is required for determining appropriate hip abductor exercises. Objectives: To assess the temporal differentiation of activity of gluteus minimus and the deep and the superficial regions of gluteus medius during weight bearing and non-weight bearing exercises. Design: Repeated measures design on a single recording occasion. Method: M-mode ultrasound was used to capture activity-related muscle motion of the gluteus minimus and medius muscles in 20 healthy volunteers during weight shift, hip hitch, side-lying abduction and active leg lengthening exercises. M-mode traces were computer-processed for detecting muscle motion onsets. Mean onset differences between muscle regions and their intra-individual variability were assessed. Results: In contrast to side-lying abduction, the weight shift and hip hitch exercises resulted in larger onset variability between the gluteus minimus and deep gluteus medius (P < 0.001) and also between the deep and superficial regions of the gluteus medius (P < 0.05). Conclusions: Weight bearing exercises promoted a greater functional differentiation between deep and superficial hip abductor muscles.

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